qlcnic: FW dump support

Added code to take FW dump.
o Driver queries FW at the init time and gets the dump template
o It takes FW dump as per the dump template
o Level of FW dump (and its size) is configured via dump flag

Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 175 insertions, 1 deletions

diff --git a/drivers/net/qlcnic/qlcnic.h b/drivers/net/qlcnic/qlcnic.h
index f729363b3fc3..689adea62700 100644
--- a/drivers/net/qlcnic/qlcnic.h
+++ b/drivers/net/qlcnic/qlcnic.h
@@ -411,6 +411,29 @@ struct qlcnic_nic_intr_coalesce {
 	u32	timer_out;
 };
 
+struct qlcnic_dump_template_hdr {
+	__le32	type;
+	__le32	offset;
+	__le32	size;
+	__le32	cap_mask;
+	__le32	num_entries;
+	__le32	version;
+	__le32	timestamp;
+	__le32	checksum;
+	__le32	drv_cap_mask;
+	__le32	sys_info[3];
+	__le32	saved_state[16];
+	__le32	cap_sizes[8];
+	__le32	rsvd[0];
+};
+
+struct qlcnic_fw_dump {
+	u8	clr;	/* flag to indicate if dump is cleared */
+	u32	size;	/* total size of the dump */
+	void	*data;	/* dump data area */
+	struct	qlcnic_dump_template_hdr *tmpl_hdr;
+};
+
 /*
  * One hardware_context{} per adapter
  * contains interrupt info as well shared hardware info.
@@ -431,6 +454,7 @@ struct qlcnic_hardware_context {
 	u16 board_type;
 
 	struct qlcnic_nic_intr_coalesce coal;
+	struct qlcnic_fw_dump fw_dump;
 };
 
 struct qlcnic_adapter_stats {
@@ -574,6 +598,8 @@ struct qlcnic_recv_context {
 #define QLCNIC_CDRP_CMD_GET_ESWITCH_PORT_CONFIG	0x00000029
 #define QLCNIC_CDRP_CMD_GET_ESWITCH_STATS	0x0000002a
 #define QLCNIC_CDRP_CMD_CONFIG_PORT		0x0000002E
+#define QLCNIC_CDRP_CMD_TEMP_SIZE		0x0000002f
+#define QLCNIC_CDRP_CMD_GET_TEMP_HDR		0x00000030
 
 #define QLCNIC_RCODE_SUCCESS		0
 #define QLCNIC_RCODE_NOT_SUPPORTED	9
@@ -1157,6 +1183,152 @@ struct qlcnic_esw_statistics {
 	struct __qlcnic_esw_statistics tx;
 };
 
+struct qlcnic_common_entry_hdr {
+	__le32	type;
+	__le32	offset;
+	__le32	cap_size;
+	u8	mask;
+	u8	rsvd[2];
+	u8	flags;
+} __packed;
+
+struct __crb {
+	__le32	addr;
+	u8	stride;
+	u8	rsvd1[3];
+	__le32	data_size;
+	__le32	no_ops;
+	__le32	rsvd2[4];
+} __packed;
+
+struct __ctrl {
+	__le32	addr;
+	u8	stride;
+	u8	index_a;
+	__le16	timeout;
+	__le32	data_size;
+	__le32	no_ops;
+	u8	opcode;
+	u8	index_v;
+	u8	shl_val;
+	u8	shr_val;
+	__le32	val1;
+	__le32	val2;
+	__le32	val3;
+} __packed;
+
+struct __cache {
+	__le32	addr;
+	u8	stride;
+	u8	rsvd;
+	__le16	init_tag_val;
+	__le32	size;
+	__le32	no_ops;
+	__le32	ctrl_addr;
+	__le32	ctrl_val;
+	__le32	read_addr;
+	u8	read_addr_stride;
+	u8	read_addr_num;
+	u8	rsvd1[2];
+} __packed;
+
+struct __ocm {
+	u8	rsvd[8];
+	__le32	size;
+	__le32	no_ops;
+	u8	rsvd1[8];
+	__le32	read_addr;
+	__le32	read_addr_stride;
+} __packed;
+
+struct __mem {
+	u8	rsvd[24];
+	__le32	addr;
+	__le32	size;
+} __packed;
+
+struct __mux {
+	__le32	addr;
+	u8	rsvd[4];
+	__le32	size;
+	__le32	no_ops;
+	__le32	val;
+	__le32	val_stride;
+	__le32	read_addr;
+	u8	rsvd2[4];
+} __packed;
+
+struct __queue {
+	__le32	sel_addr;
+	__le16	stride;
+	u8	rsvd[2];
+	__le32	size;
+	__le32	no_ops;
+	u8	rsvd2[8];
+	__le32	read_addr;
+	u8	read_addr_stride;
+	u8	read_addr_cnt;
+	u8	rsvd3[2];
+} __packed;
+
+struct qlcnic_dump_entry {
+	struct qlcnic_common_entry_hdr hdr;
+	union {
+		struct __crb	crb;
+		struct __cache	cache;
+		struct __ocm	ocm;
+		struct __mem	mem;
+		struct __mux	mux;
+		struct __queue	que;
+		struct __ctrl	ctrl;
+	} region;
+} __packed;
+
+enum op_codes {
+	QLCNIC_DUMP_NOP		= 0,
+	QLCNIC_DUMP_READ_CRB	= 1,
+	QLCNIC_DUMP_READ_MUX	= 2,
+	QLCNIC_DUMP_QUEUE	= 3,
+	QLCNIC_DUMP_BRD_CONFIG	= 4,
+	QLCNIC_DUMP_READ_OCM	= 6,
+	QLCNIC_DUMP_PEG_REG	= 7,
+	QLCNIC_DUMP_L1_DTAG	= 8,
+	QLCNIC_DUMP_L1_ITAG	= 9,
+	QLCNIC_DUMP_L1_DATA	= 11,
+	QLCNIC_DUMP_L1_INST	= 12,
+	QLCNIC_DUMP_L2_DTAG	= 21,
+	QLCNIC_DUMP_L2_ITAG	= 22,
+	QLCNIC_DUMP_L2_DATA	= 23,
+	QLCNIC_DUMP_L2_INST	= 24,
+	QLCNIC_DUMP_READ_ROM	= 71,
+	QLCNIC_DUMP_READ_MEM	= 72,
+	QLCNIC_DUMP_READ_CTRL	= 98,
+	QLCNIC_DUMP_TLHDR	= 99,
+	QLCNIC_DUMP_RDEND	= 255
+};
+
+#define QLCNIC_DUMP_WCRB	BIT_0
+#define QLCNIC_DUMP_RWCRB	BIT_1
+#define QLCNIC_DUMP_ANDCRB	BIT_2
+#define QLCNIC_DUMP_ORCRB	BIT_3
+#define QLCNIC_DUMP_POLLCRB	BIT_4
+#define QLCNIC_DUMP_RD_SAVE	BIT_5
+#define QLCNIC_DUMP_WRT_SAVED	BIT_6
+#define QLCNIC_DUMP_MOD_SAVE_ST	BIT_7
+#define QLCNIC_DUMP_SKIP	BIT_7
+
+#define QLCNIC_DUMP_MASK_MIN		3
+#define QLCNIC_DUMP_MASK_DEF		0x0f
+#define QLCNIC_DUMP_MASK_MAX		0xff
+#define QLCNIC_FORCE_FW_DUMP_KEY	0xdeadfeed
+
+struct qlcnic_dump_operations {
+	enum op_codes opcode;
+	u32 (*handler)(struct qlcnic_adapter *,
+			struct qlcnic_dump_entry *, u32 *);
+};
+
+int qlcnic_fw_cmd_get_minidump_temp(struct qlcnic_adapter *adapter);
 int qlcnic_fw_cmd_set_port(struct qlcnic_adapter *adapter, u32 config);
 
 u32 qlcnic_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off);
@@ -1203,6 +1375,7 @@ int qlcnic_wol_supported(struct qlcnic_adapter *adapter);
 int qlcnic_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate);
 void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter);
 void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter);
+int qlcnic_dump_fw(struct qlcnic_adapter *);
 
 /* Functions from qlcnic_init.c */
 int qlcnic_load_firmware(struct qlcnic_adapter *adapter);
@@ -1213,7 +1386,7 @@ int qlcnic_pinit_from_rom(struct qlcnic_adapter *adapter);
 int qlcnic_setup_idc_param(struct qlcnic_adapter *adapter);
 int qlcnic_check_flash_fw_ver(struct qlcnic_adapter *adapter);
 
-int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, int addr, int *valp);
+int qlcnic_rom_fast_read(struct qlcnic_adapter *adapter, u32 addr, u32 *valp);
 int qlcnic_rom_fast_read_words(struct qlcnic_adapter *adapter, int addr,
 				u8 *bytes, size_t size);
 int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter);
@@ -1265,6 +1438,7 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test);
 netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
 int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val);
 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data);
+void qlcnic_dev_request_reset(struct qlcnic_adapter *);
 
 /* Management functions */
 int qlcnic_get_mac_address(struct qlcnic_adapter *, u8*);